PUBLICATION

Brain activity patterns in high-throughput electrophysiology screen predict both drug efficacies and side effects

Authors
Eimon, P.M., Ghannad-Rezaie, M., De Rienzo, G., Allalou, A., Wu, Y., Gao, M., Roy, A., Skolnick, J., Yanik, M.F.
ID
ZDB-PUB-180118-2
Date
2018
Source
Nature communications   9: 219 (Journal)
Registered Authors
De Rienzo, Gianluca, Yanik, Mehmet Faith
Keywords
none
MeSH Terms
  • Animals
  • Brain/physiopathology*
  • Disease Models, Animal
  • Electrophysiological Phenomena*
  • Electrophysiology/methods
  • Epilepsies, Myoclonic/diagnosis
  • Epilepsies, Myoclonic/physiopathology
  • Humans
  • Larva/drug effects
  • Larva/genetics
  • Larva/physiology
  • Psychotropic Drugs/pharmacology*
  • Psychotropic Drugs/toxicity
  • Zebrafish/genetics
  • Zebrafish/physiology*
PubMed
29335539 Full text @ Nat. Commun.
Abstract
Neurological drugs are often associated with serious side effects, yet drug screens typically focus only on efficacy. We demonstrate a novel paradigm utilizing high-throughput in vivo electrophysiology and brain activity patterns (BAPs). A platform with high sensitivity records local field potentials (LFPs) simultaneously from many zebrafish larvae over extended periods. We show that BAPs from larvae experiencing epileptic seizures or drug-induced side effects have substantially reduced complexity (entropy), similar to reduced LFP complexity observed in Parkinson's disease. To determine whether drugs that enhance BAP complexity produces positive outcomes, we used light pulses to trigger seizures in a model of Dravet syndrome, an intractable genetic epilepsy. The highest-ranked compounds identified by BAP analysis exhibit far greater anti-seizure efficacy and fewer side effects during subsequent in-depth behavioral assessment. This high correlation with behavioral outcomes illustrates the power of brain activity pattern-based screens and identifies novel therapeutic candidates with minimal side effects.
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